The tag historic=castle is used in OpenStreetMap for various kinds of structures, most of which were originally built as fortified residences of a lord or noble. The scope of the tag currently also includes non-fortified residences like palaces; and also fortresses, which were not always a residence for nobility. Have a look at the key castle_type=* for common sub-types of this tag.

How to map

Place a node at the centre point, or draw an area covering the outline. Tag with historic=castle. The outline should include all still-existing features, for example the moat. A park on the estate should probably not be included, gardens need discussion.

Detailed mapping instructions:

If the are several buildings and/or additional features (like a moat): add an outline and add the tag there.

Site Relations

Site relations (type=site+historic=castle) allow a more detailed tagging of the historic pieces of a castle. They should always be used in addition to the point/area mapping described above. Discussion about a link between relation and node/area should be done when the technical necessity arises.

Tags to use in combination

wikipedia=* - an alternative to the wikidata tag. For most of the castles in Central Europe an article in Wikipedia exists. You should tag articles linking to one of the different languages available, e.g.

Similar tags

Use historic=archaeological_site and site_type=fortification for some castles which have completely vanished or of which only little visible remains exist like ramparts, moats or some stones. Also to use with prehistoric and early medieval ramparts.